Filed under: UFCAsk Roy Nelson how he’s been preparing for his fight against Mirko Cro Cop Filipovic at UFC 137, and you’ll find that Big Country’s sense of humor is still very much intact after two straight losses. I’ve just been working out in the cemetery a lot, he told MMA Fighting recently. I’ve got to get ready for the left kick. I want to see what it’s like. It’s a typical Roy Nelson answer, which is to say slightly absurd and said with a straight face, as if to daring you to say, ‘No, se…